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Finding the Fourth Proportional to 92,070.84, 127,042.88 and 51,782.20

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Solution

The fourth proportional to 92,070.84, 127,042.88 and 51,782.20 is: 71,451.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,070.84 : 127,042.88 = 51,782.20 : x
  2. Step 2: Convert to fraction form
    92,070.84/127,042.88 = 51,782.20/x
  3. Step 3: Cross multiply
    92,070.84x = 127,042.88 × 51,782.20
  4. Step 4: Simplify right side
    92,070.84x = 6,578,559,820.74
  5. Step 5: Solve for x
    x = 6,578,559,820.74/92,070.84
  6. Step 6: Final answer
    x = 71,451.07

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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.