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Finding the Fourth Proportional to 210,595.28, 290,587.88 and 119,953.01

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Solution

The fourth proportional to 210,595.28, 290,587.88 and 119,953.01 is: 165,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,595.28 : 290,587.88 = 119,953.01 : x
  2. Step 2: Convert to fraction form
    210,595.28/290,587.88 = 119,953.01/x
  3. Step 3: Cross multiply
    210,595.28x = 290,587.88 × 119,953.01
  4. Step 4: Simplify right side
    210,595.28x = 34,856,890,875.52
  5. Step 5: Solve for x
    x = 34,856,890,875.52/210,595.28
  6. Step 6: Final answer
    x = 165,516.01

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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.