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Finding the Fourth Proportional to 155,037.74, 213,985.40 and 94,595.40

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Solution

The fourth proportional to 155,037.74, 213,985.40 and 94,595.40 is: 130,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,037.74 : 213,985.40 = 94,595.40 : x
  2. Step 2: Convert to fraction form
    155,037.74/213,985.40 = 94,595.40/x
  3. Step 3: Cross multiply
    155,037.74x = 213,985.40 × 94,595.40
  4. Step 4: Simplify right side
    155,037.74x = 20,242,034,034.18
  5. Step 5: Solve for x
    x = 20,242,034,034.18/155,037.74
  6. Step 6: Final answer
    x = 130,561.98

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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.