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Finding the Fourth Proportional to 94,394, 130,263.72 and 56,668.52

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Solution

The fourth proportional to 94,394, 130,263.72 and 56,668.52 is: 78,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,394 : 130,263.72 = 56,668.52 : x
  2. Step 2: Convert to fraction form
    94,394/130,263.72 = 56,668.52/x
  3. Step 3: Cross multiply
    94,394x = 130,263.72 × 56,668.52
  4. Step 4: Simplify right side
    94,394x = 7,381,852,222.09
  5. Step 5: Solve for x
    x = 7,381,852,222.09/94,394
  6. Step 6: Final answer
    x = 78,202.56

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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.