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Finding the Fourth Proportional to 57,939,363.60, 86,909,045.40 and 57,043,568.40

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Solution

The fourth proportional to 57,939,363.60, 86,909,045.40 and 57,043,568.40 is: 85,565,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,939,363.60 : 86,909,045.40 = 57,043,568.40 : x
  2. Step 2: Convert to fraction form
    57,939,363.60/86,909,045.40 = 57,043,568.40/x
  3. Step 3: Cross multiply
    57,939,363.60x = 86,909,045.40 × 57,043,568.40
  4. Step 4: Simplify right side
    57,939,363.60x = 4,957,602,075,853,606
  5. Step 5: Solve for x
    x = 4,957,602,075,853,606/57,939,363.60
  6. Step 6: Final answer
    x = 85,565,352.60

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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.