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Finding the Fourth Proportional to 292,488.48, 438,732.81 and 105,499.98

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Solution

The fourth proportional to 292,488.48, 438,732.81 and 105,499.98 is: 158,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,488.48 : 438,732.81 = 105,499.98 : x
  2. Step 2: Convert to fraction form
    292,488.48/438,732.81 = 105,499.98/x
  3. Step 3: Cross multiply
    292,488.48x = 438,732.81 × 105,499.98
  4. Step 4: Simplify right side
    292,488.48x = 46,286,302,680.34
  5. Step 5: Solve for x
    x = 46,286,302,680.34/292,488.48
  6. Step 6: Final answer
    x = 158,250.00

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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.