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Finding the Fourth Proportional to 129,345.60, 194,018.40 and 97,852.80

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Solution

The fourth proportional to 129,345.60, 194,018.40 and 97,852.80 is: 146,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345.60 : 194,018.40 = 97,852.80 : x
  2. Step 2: Convert to fraction form
    129,345.60/194,018.40 = 97,852.80/x
  3. Step 3: Cross multiply
    129,345.60x = 194,018.40 × 97,852.80
  4. Step 4: Simplify right side
    129,345.60x = 18,985,243,691.52
  5. Step 5: Solve for x
    x = 18,985,243,691.52/129,345.60
  6. Step 6: Final answer
    x = 146,779.20

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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.