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Finding the Fourth Proportional to 66,569,625.60, 99,854,438.40 and 32,473,420.80

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Solution

The fourth proportional to 66,569,625.60, 99,854,438.40 and 32,473,420.80 is: 48,710,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,569,625.60 : 99,854,438.40 = 32,473,420.80 : x
  2. Step 2: Convert to fraction form
    66,569,625.60/99,854,438.40 = 32,473,420.80/x
  3. Step 3: Cross multiply
    66,569,625.60x = 99,854,438.40 × 32,473,420.80
  4. Step 4: Simplify right side
    66,569,625.60x = 3,242,615,196,910,879
  5. Step 5: Solve for x
    x = 3,242,615,196,910,879/66,569,625.60
  6. Step 6: Final answer
    x = 48,710,131.20

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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.