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Finding the Fourth Proportional to 350,312.45, 525,668.65 and 137,097.77

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Solution

The fourth proportional to 350,312.45, 525,668.65 and 137,097.77 is: 205,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,312.45 : 525,668.65 = 137,097.77 : x
  2. Step 2: Convert to fraction form
    350,312.45/525,668.65 = 137,097.77/x
  3. Step 3: Cross multiply
    350,312.45x = 525,668.65 × 137,097.77
  4. Step 4: Simplify right side
    350,312.45x = 72,068,000,645.34
  5. Step 5: Solve for x
    x = 72,068,000,645.34/350,312.45
  6. Step 6: Final answer
    x = 205,724.92

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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.