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Finding the Fourth Proportional to 495,266.13, 742,862.85 and 158,216.28

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Solution

The fourth proportional to 495,266.13, 742,862.85 and 158,216.28 is: 237,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,266.13 : 742,862.85 = 158,216.28 : x
  2. Step 2: Convert to fraction form
    495,266.13/742,862.85 = 158,216.28/x
  3. Step 3: Cross multiply
    495,266.13x = 742,862.85 × 158,216.28
  4. Step 4: Simplify right side
    495,266.13x = 117,532,996,677.20
  5. Step 5: Solve for x
    x = 117,532,996,677.20/495,266.13
  6. Step 6: Final answer
    x = 237,312.81

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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.