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Finding the Fourth Proportional to 92,397.72, 127,393.33 and 77,106.32

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Solution

The fourth proportional to 92,397.72, 127,393.33 and 77,106.32 is: 106,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,397.72 : 127,393.33 = 77,106.32 : x
  2. Step 2: Convert to fraction form
    92,397.72/127,393.33 = 77,106.32/x
  3. Step 3: Cross multiply
    92,397.72x = 127,393.33 × 77,106.32
  4. Step 4: Simplify right side
    92,397.72x = 9,822,830,039.11
  5. Step 5: Solve for x
    x = 9,822,830,039.11/92,397.72
  6. Step 6: Final answer
    x = 106,310.31

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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.