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Finding the Fourth Proportional to 249,897.60, 374,865.84 and 72,407.16

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Solution

The fourth proportional to 249,897.60, 374,865.84 and 72,407.16 is: 108,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,897.60 : 374,865.84 = 72,407.16 : x
  2. Step 2: Convert to fraction form
    249,897.60/374,865.84 = 72,407.16/x
  3. Step 3: Cross multiply
    249,897.60x = 374,865.84 × 72,407.16
  4. Step 4: Simplify right side
    249,897.60x = 27,142,970,855.41
  5. Step 5: Solve for x
    x = 27,142,970,855.41/249,897.60
  6. Step 6: Final answer
    x = 108,616.37

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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.