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Finding the Fourth Proportional to 527,065.19, 790,619.65 and 153,088.19

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Solution

The fourth proportional to 527,065.19, 790,619.65 and 153,088.19 is: 229,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,065.19 : 790,619.65 = 153,088.19 : x
  2. Step 2: Convert to fraction form
    527,065.19/790,619.65 = 153,088.19/x
  3. Step 3: Cross multiply
    527,065.19x = 790,619.65 × 153,088.19
  4. Step 4: Simplify right side
    527,065.19x = 121,034,531,196.93
  5. Step 5: Solve for x
    x = 121,034,531,196.93/527,065.19
  6. Step 6: Final answer
    x = 229,638.64

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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.