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Finding the Fourth Proportional to 69,359,241.60, 104,038,862.40 and 42,149,462.40

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Solution

The fourth proportional to 69,359,241.60, 104,038,862.40 and 42,149,462.40 is: 63,224,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,359,241.60 : 104,038,862.40 = 42,149,462.40 : x
  2. Step 2: Convert to fraction form
    69,359,241.60/104,038,862.40 = 42,149,462.40/x
  3. Step 3: Cross multiply
    69,359,241.60x = 104,038,862.40 × 42,149,462.40
  4. Step 4: Simplify right side
    69,359,241.60x = 4,385,182,118,867,574
  5. Step 5: Solve for x
    x = 4,385,182,118,867,574/69,359,241.60
  6. Step 6: Final answer
    x = 63,224,193.60

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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.