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Finding the Fourth Proportional to 113,437.80, 170,156.70 and 97,885.80

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Solution

The fourth proportional to 113,437.80, 170,156.70 and 97,885.80 is: 146,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,437.80 : 170,156.70 = 97,885.80 : x
  2. Step 2: Convert to fraction form
    113,437.80/170,156.70 = 97,885.80/x
  3. Step 3: Cross multiply
    113,437.80x = 170,156.70 × 97,885.80
  4. Step 4: Simplify right side
    113,437.80x = 16,655,924,704.86
  5. Step 5: Solve for x
    x = 16,655,924,704.86/113,437.80
  6. Step 6: Final answer
    x = 146,828.70

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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.