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Finding the Fourth Proportional to 170,034.30, 255,148.65 and 64,928.70

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Solution

The fourth proportional to 170,034.30, 255,148.65 and 64,928.70 is: 97,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,034.30 : 255,148.65 = 64,928.70 : x
  2. Step 2: Convert to fraction form
    170,034.30/255,148.65 = 64,928.70/x
  3. Step 3: Cross multiply
    170,034.30x = 255,148.65 × 64,928.70
  4. Step 4: Simplify right side
    170,034.30x = 16,566,470,151.26
  5. Step 5: Solve for x
    x = 16,566,470,151.26/170,034.30
  6. Step 6: Final answer
    x = 97,430.17

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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.