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Finding the Fourth Proportional to 70,585.96, 97,401.46 and 42,290.92

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Solution

The fourth proportional to 70,585.96, 97,401.46 and 42,290.92 is: 58,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.96 : 97,401.46 = 42,290.92 : x
  2. Step 2: Convert to fraction form
    70,585.96/97,401.46 = 42,290.92/x
  3. Step 3: Cross multiply
    70,585.96x = 97,401.46 × 42,290.92
  4. Step 4: Simplify right side
    70,585.96x = 4,119,197,352.74
  5. Step 5: Solve for x
    x = 4,119,197,352.74/70,585.96
  6. Step 6: Final answer
    x = 58,357.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.