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Finding the Fourth Proportional to 282,269.60, 423,058.80 and 124,330.40

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Solution

The fourth proportional to 282,269.60, 423,058.80 and 124,330.40 is: 186,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,269.60 : 423,058.80 = 124,330.40 : x
  2. Step 2: Convert to fraction form
    282,269.60/423,058.80 = 124,330.40/x
  3. Step 3: Cross multiply
    282,269.60x = 423,058.80 × 124,330.40
  4. Step 4: Simplify right side
    282,269.60x = 52,599,069,827.52
  5. Step 5: Solve for x
    x = 52,599,069,827.52/282,269.60
  6. Step 6: Final answer
    x = 186,343.37

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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.