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Finding the Fourth Proportional to 101,335.64, 139,837.72 and 56,010.92

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Solution

The fourth proportional to 101,335.64, 139,837.72 and 56,010.92 is: 77,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,335.64 : 139,837.72 = 56,010.92 : x
  2. Step 2: Convert to fraction form
    101,335.64/139,837.72 = 56,010.92/x
  3. Step 3: Cross multiply
    101,335.64x = 139,837.72 × 56,010.92
  4. Step 4: Simplify right side
    101,335.64x = 7,832,438,971.38
  5. Step 5: Solve for x
    x = 7,832,438,971.38/101,335.64
  6. Step 6: Final answer
    x = 77,292.05

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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.