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Finding the Fourth Proportional to 144,008.60, 215,840.10 and 73,851.80

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Solution

The fourth proportional to 144,008.60, 215,840.10 and 73,851.80 is: 110,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,008.60 : 215,840.10 = 73,851.80 : x
  2. Step 2: Convert to fraction form
    144,008.60/215,840.10 = 73,851.80/x
  3. Step 3: Cross multiply
    144,008.60x = 215,840.10 × 73,851.80
  4. Step 4: Simplify right side
    144,008.60x = 15,940,179,897.18
  5. Step 5: Solve for x
    x = 15,940,179,897.18/144,008.60
  6. Step 6: Final answer
    x = 110,689.08

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1.5x scale

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.