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Finding the Fourth Proportional to 144,443.60, 216,664.78 and 39,262.26

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Solution

The fourth proportional to 144,443.60, 216,664.78 and 39,262.26 is: 58,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,443.60 : 216,664.78 = 39,262.26 : x
  2. Step 2: Convert to fraction form
    144,443.60/216,664.78 = 39,262.26/x
  3. Step 3: Cross multiply
    144,443.60x = 216,664.78 × 39,262.26
  4. Step 4: Simplify right side
    144,443.60x = 8,506,748,925.20
  5. Step 5: Solve for x
    x = 8,506,748,925.20/144,443.60
  6. Step 6: Final answer
    x = 58,893.22

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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.