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Finding the Fourth Proportional to 170,417.74, 235,138.59 and 97,816.20

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Solution

The fourth proportional to 170,417.74, 235,138.59 and 97,816.20 is: 134,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,417.74 : 235,138.59 = 97,816.20 : x
  2. Step 2: Convert to fraction form
    170,417.74/235,138.59 = 97,816.20/x
  3. Step 3: Cross multiply
    170,417.74x = 235,138.59 × 97,816.20
  4. Step 4: Simplify right side
    170,417.74x = 23,000,363,347.16
  5. Step 5: Solve for x
    x = 23,000,363,347.16/170,417.74
  6. Step 6: Final answer
    x = 134,964.61

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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.