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Finding the Fourth Proportional to 157,098.68, 216,800.06 and 85,482.63

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Solution

The fourth proportional to 157,098.68, 216,800.06 and 85,482.63 is: 117,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,098.68 : 216,800.06 = 85,482.63 : x
  2. Step 2: Convert to fraction form
    157,098.68/216,800.06 = 85,482.63/x
  3. Step 3: Cross multiply
    157,098.68x = 216,800.06 × 85,482.63
  4. Step 4: Simplify right side
    157,098.68x = 18,532,639,312.96
  5. Step 5: Solve for x
    x = 18,532,639,312.96/157,098.68
  6. Step 6: Final answer
    x = 117,968.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.