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Finding the Fourth Proportional to 130,667.60, 195,799.80 and 97,230.80

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Solution

The fourth proportional to 130,667.60, 195,799.80 and 97,230.80 is: 145,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,667.60 : 195,799.80 = 97,230.80 : x
  2. Step 2: Convert to fraction form
    130,667.60/195,799.80 = 97,230.80/x
  3. Step 3: Cross multiply
    130,667.60x = 195,799.80 × 97,230.80
  4. Step 4: Simplify right side
    130,667.60x = 19,037,771,193.84
  5. Step 5: Solve for x
    x = 19,037,771,193.84/130,667.60
  6. Step 6: Final answer
    x = 145,696.19

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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.