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Finding the Fourth Proportional to 104,681.90, 144,466.92 and 56,934.29

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Solution

The fourth proportional to 104,681.90, 144,466.92 and 56,934.29 is: 78,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,681.90 : 144,466.92 = 56,934.29 : x
  2. Step 2: Convert to fraction form
    104,681.90/144,466.92 = 56,934.29/x
  3. Step 3: Cross multiply
    104,681.90x = 144,466.92 × 56,934.29
  4. Step 4: Simplify right side
    104,681.90x = 8,225,120,796.35
  5. Step 5: Solve for x
    x = 8,225,120,796.35/104,681.90
  6. Step 6: Final answer
    x = 78,572.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.