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Finding the Fourth Proportional to 112,993,113.60, 169,489,670.40 and 87,483,945.60

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Solution

The fourth proportional to 112,993,113.60, 169,489,670.40 and 87,483,945.60 is: 131,225,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,993,113.60 : 169,489,670.40 = 87,483,945.60 : x
  2. Step 2: Convert to fraction form
    112,993,113.60/169,489,670.40 = 87,483,945.60/x
  3. Step 3: Cross multiply
    112,993,113.60x = 169,489,670.40 × 87,483,945.60
  4. Step 4: Simplify right side
    112,993,113.60x = 14,827,625,105,035,530
  5. Step 5: Solve for x
    x = 14,827,625,105,035,530/112,993,113.60
  6. Step 6: Final answer
    x = 131,225,918.40

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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.