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Finding the Fourth Proportional to 572,809.08, 859,146.30 and 152,117.40

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Solution

The fourth proportional to 572,809.08, 859,146.30 and 152,117.40 is: 228,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,809.08 : 859,146.30 = 152,117.40 : x
  2. Step 2: Convert to fraction form
    572,809.08/859,146.30 = 152,117.40/x
  3. Step 3: Cross multiply
    572,809.08x = 859,146.30 × 152,117.40
  4. Step 4: Simplify right side
    572,809.08x = 130,691,101,375.62
  5. Step 5: Solve for x
    x = 130,691,101,375.62/572,809.08
  6. Step 6: Final answer
    x = 228,158.22

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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.