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Finding the Fourth Proportional to 77,602.52, 107,130.22 and 50,785.98

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Solution

The fourth proportional to 77,602.52, 107,130.22 and 50,785.98 is: 70,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,602.52 : 107,130.22 = 50,785.98 : x
  2. Step 2: Convert to fraction form
    77,602.52/107,130.22 = 50,785.98/x
  3. Step 3: Cross multiply
    77,602.52x = 107,130.22 × 50,785.98
  4. Step 4: Simplify right side
    77,602.52x = 5,440,713,569.89
  5. Step 5: Solve for x
    x = 5,440,713,569.89/77,602.52
  6. Step 6: Final answer
    x = 70,110.01

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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.