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Finding the Fourth Proportional to 354,871.60, 532,307.40 and 235,121.20

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Solution

The fourth proportional to 354,871.60, 532,307.40 and 235,121.20 is: 352,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,871.60 : 532,307.40 = 235,121.20 : x
  2. Step 2: Convert to fraction form
    354,871.60/532,307.40 = 235,121.20/x
  3. Step 3: Cross multiply
    354,871.60x = 532,307.40 × 235,121.20
  4. Step 4: Simplify right side
    354,871.60x = 125,156,754,656.88
  5. Step 5: Solve for x
    x = 125,156,754,656.88/354,871.60
  6. Step 6: Final answer
    x = 352,681.80

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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.