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Finding the Fourth Proportional to 92,109.36, 127,125.36 and 56,320.32

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Solution

The fourth proportional to 92,109.36, 127,125.36 and 56,320.32 is: 77,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,109.36 : 127,125.36 = 56,320.32 : x
  2. Step 2: Convert to fraction form
    92,109.36/127,125.36 = 56,320.32/x
  3. Step 3: Cross multiply
    92,109.36x = 127,125.36 × 56,320.32
  4. Step 4: Simplify right side
    92,109.36x = 7,159,740,955.32
  5. Step 5: Solve for x
    x = 7,159,740,955.32/92,109.36
  6. Step 6: Final answer
    x = 77,730.87

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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.