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Finding the Fourth Proportional to 176,218, 243,070.20 and 104,547.28

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Solution

The fourth proportional to 176,218, 243,070.20 and 104,547.28 is: 144,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,218 : 243,070.20 = 104,547.28 : x
  2. Step 2: Convert to fraction form
    176,218/243,070.20 = 104,547.28/x
  3. Step 3: Cross multiply
    176,218x = 243,070.20 × 104,547.28
  4. Step 4: Simplify right side
    176,218x = 25,412,328,259.06
  5. Step 5: Solve for x
    x = 25,412,328,259.06/176,218
  6. Step 6: Final answer
    x = 144,209.61

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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.