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Finding the Fourth Proportional to 92,774.01, 128,094.71 and 57,011.97

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Solution

The fourth proportional to 92,774.01, 128,094.71 and 57,011.97 is: 78,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,774.01 : 128,094.71 = 57,011.97 : x
  2. Step 2: Convert to fraction form
    92,774.01/128,094.71 = 57,011.97/x
  3. Step 3: Cross multiply
    92,774.01x = 128,094.71 × 57,011.97
  4. Step 4: Simplify right side
    92,774.01x = 7,302,931,478.62
  5. Step 5: Solve for x
    x = 7,302,931,478.62/92,774.01
  6. Step 6: Final answer
    x = 78,717.43

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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.