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Finding the Fourth Proportional to 170,715.96, 256,106.88 and 65,526.72

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Solution

The fourth proportional to 170,715.96, 256,106.88 and 65,526.72 is: 98,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,715.96 : 256,106.88 = 65,526.72 : x
  2. Step 2: Convert to fraction form
    170,715.96/256,106.88 = 65,526.72/x
  3. Step 3: Cross multiply
    170,715.96x = 256,106.88 × 65,526.72
  4. Step 4: Simplify right side
    170,715.96x = 16,781,843,815.83
  5. Step 5: Solve for x
    x = 16,781,843,815.83/170,715.96
  6. Step 6: Final answer
    x = 98,302.72

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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.