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Finding the Fourth Proportional to 92,228.90, 127,238.93 and 56,356.64

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Solution

The fourth proportional to 92,228.90, 127,238.93 and 56,356.64 is: 77,749.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,228.90 : 127,238.93 = 56,356.64 : x
  2. Step 2: Convert to fraction form
    92,228.90/127,238.93 = 56,356.64/x
  3. Step 3: Cross multiply
    92,228.90x = 127,238.93 × 56,356.64
  4. Step 4: Simplify right side
    92,228.90x = 7,170,758,572.00
  5. Step 5: Solve for x
    x = 7,170,758,572.00/92,228.90
  6. Step 6: Final answer
    x = 77,749.58

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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.