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Finding the Fourth Proportional to 97,689.80, 146,534.70 and 57,667.70

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Solution

The fourth proportional to 97,689.80, 146,534.70 and 57,667.70 is: 86,501.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,689.80 : 146,534.70 = 57,667.70 : x
  2. Step 2: Convert to fraction form
    97,689.80/146,534.70 = 57,667.70/x
  3. Step 3: Cross multiply
    97,689.80x = 146,534.70 × 57,667.70
  4. Step 4: Simplify right side
    97,689.80x = 8,450,319,119.19
  5. Step 5: Solve for x
    x = 8,450,319,119.19/97,689.80
  6. Step 6: Final answer
    x = 86,501.55

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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.