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Finding the Fourth Proportional to 170,459.10, 255,688.65 and 75,652.65

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Solution

The fourth proportional to 170,459.10, 255,688.65 and 75,652.65 is: 113,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,459.10 : 255,688.65 = 75,652.65 : x
  2. Step 2: Convert to fraction form
    170,459.10/255,688.65 = 75,652.65/x
  3. Step 3: Cross multiply
    170,459.10x = 255,688.65 × 75,652.65
  4. Step 4: Simplify right side
    170,459.10x = 19,343,523,947.42
  5. Step 5: Solve for x
    x = 19,343,523,947.42/170,459.10
  6. Step 6: Final answer
    x = 113,478.98

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1.5x scale

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.