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Finding the Fourth Proportional to 109,670.16, 151,345.28 and 59,369.16

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Solution

The fourth proportional to 109,670.16, 151,345.28 and 59,369.16 is: 81,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,670.16 : 151,345.28 = 59,369.16 : x
  2. Step 2: Convert to fraction form
    109,670.16/151,345.28 = 59,369.16/x
  3. Step 3: Cross multiply
    109,670.16x = 151,345.28 × 59,369.16
  4. Step 4: Simplify right side
    109,670.16x = 8,985,242,143.56
  5. Step 5: Solve for x
    x = 8,985,242,143.56/109,670.16
  6. Step 6: Final answer
    x = 81,929.69

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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.