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Finding the Fourth Proportional to 572,806.08, 859,141.80 and 152,114.40

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Solution

The fourth proportional to 572,806.08, 859,141.80 and 152,114.40 is: 228,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,806.08 : 859,141.80 = 152,114.40 : x
  2. Step 2: Convert to fraction form
    572,806.08/859,141.80 = 152,114.40/x
  3. Step 3: Cross multiply
    572,806.08x = 859,141.80 × 152,114.40
  4. Step 4: Simplify right side
    572,806.08x = 130,687,839,421.92
  5. Step 5: Solve for x
    x = 130,687,839,421.92/572,806.08
  6. Step 6: Final answer
    x = 228,153.72

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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.