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Finding the Fourth Proportional to 335,136.80, 502,532.40 and 124,666.40

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Solution

The fourth proportional to 335,136.80, 502,532.40 and 124,666.40 is: 186,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,136.80 : 502,532.40 = 124,666.40 : x
  2. Step 2: Convert to fraction form
    335,136.80/502,532.40 = 124,666.40/x
  3. Step 3: Cross multiply
    335,136.80x = 502,532.40 × 124,666.40
  4. Step 4: Simplify right side
    335,136.80x = 62,648,905,191.36
  5. Step 5: Solve for x
    x = 62,648,905,191.36/335,136.80
  6. Step 6: Final answer
    x = 186,935.32

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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.