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Finding the Fourth Proportional to 170,779.64, 235,742.36 and 152,843.49

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Solution

The fourth proportional to 170,779.64, 235,742.36 and 152,843.49 is: 210,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,779.64 : 235,742.36 = 152,843.49 : x
  2. Step 2: Convert to fraction form
    170,779.64/235,742.36 = 152,843.49/x
  3. Step 3: Cross multiply
    170,779.64x = 235,742.36 × 152,843.49
  4. Step 4: Simplify right side
    170,779.64x = 36,031,684,279.02
  5. Step 5: Solve for x
    x = 36,031,684,279.02/170,779.64
  6. Step 6: Final answer
    x = 210,983.50

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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.