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Finding the Fourth Proportional to 94,888.50, 130,946.13 and 57,170.58

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Solution

The fourth proportional to 94,888.50, 130,946.13 and 57,170.58 is: 78,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,888.50 : 130,946.13 = 57,170.58 : x
  2. Step 2: Convert to fraction form
    94,888.50/130,946.13 = 57,170.58/x
  3. Step 3: Cross multiply
    94,888.50x = 130,946.13 × 57,170.58
  4. Step 4: Simplify right side
    94,888.50x = 7,486,266,200.86
  5. Step 5: Solve for x
    x = 7,486,266,200.86/94,888.50
  6. Step 6: Final answer
    x = 78,895.40

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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.