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Finding the Fourth Proportional to 105,887,837.40, 158,831,756.10 and 105,887,837.40

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Solution

The fourth proportional to 105,887,837.40, 158,831,756.10 and 105,887,837.40 is: 158,831,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,887,837.40 : 158,831,756.10 = 105,887,837.40 : x
  2. Step 2: Convert to fraction form
    105,887,837.40/158,831,756.10 = 105,887,837.40/x
  3. Step 3: Cross multiply
    105,887,837.40x = 158,831,756.10 × 105,887,837.40
  4. Step 4: Simplify right side
    105,887,837.40x = 16,818,351,163,873,258
  5. Step 5: Solve for x
    x = 16,818,351,163,873,258/105,887,837.40
  6. Step 6: Final answer
    x = 158,831,756.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.