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Finding the Fourth Proportional to 77,707.74, 107,237.08 and 45,892.32

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Solution

The fourth proportional to 77,707.74, 107,237.08 and 45,892.32 is: 63,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,707.74 : 107,237.08 = 45,892.32 : x
  2. Step 2: Convert to fraction form
    77,707.74/107,237.08 = 45,892.32/x
  3. Step 3: Cross multiply
    77,707.74x = 107,237.08 × 45,892.32
  4. Step 4: Simplify right side
    77,707.74x = 4,921,358,391.23
  5. Step 5: Solve for x
    x = 4,921,358,391.23/77,707.74
  6. Step 6: Final answer
    x = 63,331.64

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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.