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Finding the Fourth Proportional to 527,066.50, 790,621.62 and 153,089.50

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Solution

The fourth proportional to 527,066.50, 790,621.62 and 153,089.50 is: 229,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,066.50 : 790,621.62 = 153,089.50 : x
  2. Step 2: Convert to fraction form
    527,066.50/790,621.62 = 153,089.50/x
  3. Step 3: Cross multiply
    527,066.50x = 790,621.62 × 153,089.50
  4. Step 4: Simplify right side
    527,066.50x = 121,035,868,494.99
  5. Step 5: Solve for x
    x = 121,035,868,494.99/527,066.50
  6. Step 6: Final answer
    x = 229,640.60

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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.