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Finding the Fourth Proportional to 70,608,935.40, 105,913,403.10 and 25,154,327.40

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Solution

The fourth proportional to 70,608,935.40, 105,913,403.10 and 25,154,327.40 is: 37,731,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608,935.40 : 105,913,403.10 = 25,154,327.40 : x
  2. Step 2: Convert to fraction form
    70,608,935.40/105,913,403.10 = 25,154,327.40/x
  3. Step 3: Cross multiply
    70,608,935.40x = 105,913,403.10 × 25,154,327.40
  4. Step 4: Simplify right side
    70,608,935.40x = 2,664,180,417,625,574.50
  5. Step 5: Solve for x
    x = 2,664,180,417,625,574.50/70,608,935.40
  6. Step 6: Final answer
    x = 37,731,491.10

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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.