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Finding the Fourth Proportional to 92,133.36, 127,139.36 and 54,400.32

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Solution

The fourth proportional to 92,133.36, 127,139.36 and 54,400.32 is: 75,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,133.36 : 127,139.36 = 54,400.32 : x
  2. Step 2: Convert to fraction form
    92,133.36/127,139.36 = 54,400.32/x
  3. Step 3: Cross multiply
    92,133.36x = 127,139.36 × 54,400.32
  4. Step 4: Simplify right side
    92,133.36x = 6,916,421,868.60
  5. Step 5: Solve for x
    x = 6,916,421,868.60/92,133.36
  6. Step 6: Final answer
    x = 75,069.68

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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.