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Finding the Fourth Proportional to 527,065.88, 790,620.69 and 153,088.88

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Solution

The fourth proportional to 527,065.88, 790,620.69 and 153,088.88 is: 229,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,065.88 : 790,620.69 = 153,088.88 : x
  2. Step 2: Convert to fraction form
    527,065.88/790,620.69 = 153,088.88/x
  3. Step 3: Cross multiply
    527,065.88x = 790,620.69 × 153,088.88
  4. Step 4: Simplify right side
    527,065.88x = 121,035,231,983.82
  5. Step 5: Solve for x
    x = 121,035,231,983.82/527,065.88
  6. Step 6: Final answer
    x = 229,639.67

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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.