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Finding the Fourth Proportional to 65,367,284.80, 97,798,984.80 and 42,692,468.80

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Solution

The fourth proportional to 65,367,284.80, 97,798,984.80 and 42,692,468.80 is: 63,874,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367,284.80 : 97,798,984.80 = 42,692,468.80 : x
  2. Step 2: Convert to fraction form
    65,367,284.80/97,798,984.80 = 42,692,468.80/x
  3. Step 3: Cross multiply
    65,367,284.80x = 97,798,984.80 × 42,692,468.80
  4. Step 4: Simplify right side
    65,367,284.80x = 4,175,280,107,245,674
  5. Step 5: Solve for x
    x = 4,175,280,107,245,674/65,367,284.80
  6. Step 6: Final answer
    x = 63,874,155.40

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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.