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Finding the Fourth Proportional to 358,966.88, 538,700.16 and 148,605.92

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Solution

The fourth proportional to 358,966.88, 538,700.16 and 148,605.92 is: 223,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,966.88 : 538,700.16 = 148,605.92 : x
  2. Step 2: Convert to fraction form
    358,966.88/538,700.16 = 148,605.92/x
  3. Step 3: Cross multiply
    358,966.88x = 538,700.16 × 148,605.92
  4. Step 4: Simplify right side
    358,966.88x = 80,054,032,880.95
  5. Step 5: Solve for x
    x = 80,054,032,880.95/358,966.88
  6. Step 6: Final answer
    x = 223,012.31

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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.