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Finding the Fourth Proportional to 109,971.45, 151,760.49 and 59,670.45

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Solution

The fourth proportional to 109,971.45, 151,760.49 and 59,670.45 is: 82,345.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,971.45 : 151,760.49 = 59,670.45 : x
  2. Step 2: Convert to fraction form
    109,971.45/151,760.49 = 59,670.45/x
  3. Step 3: Cross multiply
    109,971.45x = 151,760.49 × 59,670.45
  4. Step 4: Simplify right side
    109,971.45x = 9,055,616,730.52
  5. Step 5: Solve for x
    x = 9,055,616,730.52/109,971.45
  6. Step 6: Final answer
    x = 82,345.16

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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.