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Finding the Fourth Proportional to 42,603,645.60, 63,905,468.40 and 35,801,200.80

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Solution

The fourth proportional to 42,603,645.60, 63,905,468.40 and 35,801,200.80 is: 53,701,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,603,645.60 : 63,905,468.40 = 35,801,200.80 : x
  2. Step 2: Convert to fraction form
    42,603,645.60/63,905,468.40 = 35,801,200.80/x
  3. Step 3: Cross multiply
    42,603,645.60x = 63,905,468.40 × 35,801,200.80
  4. Step 4: Simplify right side
    42,603,645.60x = 2,287,892,506,406,454.50
  5. Step 5: Solve for x
    x = 2,287,892,506,406,454.50/42,603,645.60
  6. Step 6: Final answer
    x = 53,701,801.20

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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.