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Finding the Fourth Proportional to 243,034.45, 335,417.83 and 141,038.01

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Solution

The fourth proportional to 243,034.45, 335,417.83 and 141,038.01 is: 194,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,034.45 : 335,417.83 = 141,038.01 : x
  2. Step 2: Convert to fraction form
    243,034.45/335,417.83 = 141,038.01/x
  3. Step 3: Cross multiply
    243,034.45x = 335,417.83 × 141,038.01
  4. Step 4: Simplify right side
    243,034.45x = 47,306,662,909.12
  5. Step 5: Solve for x
    x = 47,306,662,909.12/243,034.45
  6. Step 6: Final answer
    x = 194,650.03

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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.