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Finding the Fourth Proportional to 235,345.87, 324,779.48 and 127,916.16

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Solution

The fourth proportional to 235,345.87, 324,779.48 and 127,916.16 is: 176,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,345.87 : 324,779.48 = 127,916.16 : x
  2. Step 2: Convert to fraction form
    235,345.87/324,779.48 = 127,916.16/x
  3. Step 3: Cross multiply
    235,345.87x = 324,779.48 × 127,916.16
  4. Step 4: Simplify right side
    235,345.87x = 41,544,543,928.40
  5. Step 5: Solve for x
    x = 41,544,543,928.40/235,345.87
  6. Step 6: Final answer
    x = 176,525.49

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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.