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Finding the Fourth Proportional to 358,931.04, 538,354.88 and 92,670.63

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Solution

The fourth proportional to 358,931.04, 538,354.88 and 92,670.63 is: 138,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,931.04 : 538,354.88 = 92,670.63 : x
  2. Step 2: Convert to fraction form
    358,931.04/538,354.88 = 92,670.63/x
  3. Step 3: Cross multiply
    358,931.04x = 538,354.88 × 92,670.63
  4. Step 4: Simplify right side
    358,931.04x = 49,889,685,429.82
  5. Step 5: Solve for x
    x = 49,889,685,429.82/358,931.04
  6. Step 6: Final answer
    x = 138,995.18

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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.