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Finding the Fourth Proportional to 104,684.40, 144,402.92 and 65,860.47

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Solution

The fourth proportional to 104,684.40, 144,402.92 and 65,860.47 is: 90,848.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,684.40 : 144,402.92 = 65,860.47 : x
  2. Step 2: Convert to fraction form
    104,684.40/144,402.92 = 65,860.47/x
  3. Step 3: Cross multiply
    104,684.40x = 144,402.92 × 65,860.47
  4. Step 4: Simplify right side
    104,684.40x = 9,510,443,851.27
  5. Step 5: Solve for x
    x = 9,510,443,851.27/104,684.40
  6. Step 6: Final answer
    x = 90,848.72

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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.