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Finding the Fourth Proportional to 370,737.60, 556,106.40 and 121,444.80

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Solution

The fourth proportional to 370,737.60, 556,106.40 and 121,444.80 is: 182,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,737.60 : 556,106.40 = 121,444.80 : x
  2. Step 2: Convert to fraction form
    370,737.60/556,106.40 = 121,444.80/x
  3. Step 3: Cross multiply
    370,737.60x = 556,106.40 × 121,444.80
  4. Step 4: Simplify right side
    370,737.60x = 67,536,230,526.72
  5. Step 5: Solve for x
    x = 67,536,230,526.72/370,737.60
  6. Step 6: Final answer
    x = 182,167.20

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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.