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Finding the Fourth Proportional to 130,666.60, 195,798.30 and 97,229.80

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Solution

The fourth proportional to 130,666.60, 195,798.30 and 97,229.80 is: 145,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,666.60 : 195,798.30 = 97,229.80 : x
  2. Step 2: Convert to fraction form
    130,666.60/195,798.30 = 97,229.80/x
  3. Step 3: Cross multiply
    130,666.60x = 195,798.30 × 97,229.80
  4. Step 4: Simplify right side
    130,666.60x = 19,037,429,549.34
  5. Step 5: Solve for x
    x = 19,037,429,549.34/130,666.60
  6. Step 6: Final answer
    x = 145,694.69

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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.