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Finding the Fourth Proportional to 202,191.39, 279,025.04 and 111,547.32

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Solution

The fourth proportional to 202,191.39, 279,025.04 and 111,547.32 is: 153,935.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,191.39 : 279,025.04 = 111,547.32 : x
  2. Step 2: Convert to fraction form
    202,191.39/279,025.04 = 111,547.32/x
  3. Step 3: Cross multiply
    202,191.39x = 279,025.04 × 111,547.32
  4. Step 4: Simplify right side
    202,191.39x = 31,124,495,006.20
  5. Step 5: Solve for x
    x = 31,124,495,006.20/202,191.39
  6. Step 6: Final answer
    x = 153,935.81

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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.