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Finding the Fourth Proportional to 194,686.80, 292,030.20 and 70,037.52

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Solution

The fourth proportional to 194,686.80, 292,030.20 and 70,037.52 is: 105,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,686.80 : 292,030.20 = 70,037.52 : x
  2. Step 2: Convert to fraction form
    194,686.80/292,030.20 = 70,037.52/x
  3. Step 3: Cross multiply
    194,686.80x = 292,030.20 × 70,037.52
  4. Step 4: Simplify right side
    194,686.80x = 20,453,070,973.10
  5. Step 5: Solve for x
    x = 20,453,070,973.10/194,686.80
  6. Step 6: Final answer
    x = 105,056.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.