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Finding the Fourth Proportional to 86,688,310.60, 130,032,465.90 and 86,688,310.60

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Solution

The fourth proportional to 86,688,310.60, 130,032,465.90 and 86,688,310.60 is: 130,032,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,688,310.60 : 130,032,465.90 = 86,688,310.60 : x
  2. Step 2: Convert to fraction form
    86,688,310.60/130,032,465.90 = 86,688,310.60/x
  3. Step 3: Cross multiply
    86,688,310.60x = 130,032,465.90 × 86,688,310.60
  4. Step 4: Simplify right side
    86,688,310.60x = 11,272,294,792,023,108
  5. Step 5: Solve for x
    x = 11,272,294,792,023,108/86,688,310.60
  6. Step 6: Final answer
    x = 130,032,465.90

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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.