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Finding the Fourth Proportional to 44,411,985.80, 66,617,978.70 and 25,280,109.80

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Solution

The fourth proportional to 44,411,985.80, 66,617,978.70 and 25,280,109.80 is: 37,920,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,411,985.80 : 66,617,978.70 = 25,280,109.80 : x
  2. Step 2: Convert to fraction form
    44,411,985.80/66,617,978.70 = 25,280,109.80/x
  3. Step 3: Cross multiply
    44,411,985.80x = 66,617,978.70 × 25,280,109.80
  4. Step 4: Simplify right side
    44,411,985.80x = 1,684,109,816,190,061.50
  5. Step 5: Solve for x
    x = 1,684,109,816,190,061.50/44,411,985.80
  6. Step 6: Final answer
    x = 37,920,164.70

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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.