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Finding the Fourth Proportional to 249,374.59, 374,141.57 and 89,342.49

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Solution

The fourth proportional to 249,374.59, 374,141.57 and 89,342.49 is: 134,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,374.59 : 374,141.57 = 89,342.49 : x
  2. Step 2: Convert to fraction form
    249,374.59/374,141.57 = 89,342.49/x
  3. Step 3: Cross multiply
    249,374.59x = 374,141.57 × 89,342.49
  4. Step 4: Simplify right side
    249,374.59x = 33,426,738,296.63
  5. Step 5: Solve for x
    x = 33,426,738,296.63/249,374.59
  6. Step 6: Final answer
    x = 134,042.28

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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.