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Finding the Fourth Proportional to 188,547.84, 260,192.52 and 103,663.08

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Solution

The fourth proportional to 188,547.84, 260,192.52 and 103,663.08 is: 143,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,547.84 : 260,192.52 = 103,663.08 : x
  2. Step 2: Convert to fraction form
    188,547.84/260,192.52 = 103,663.08/x
  3. Step 3: Cross multiply
    188,547.84x = 260,192.52 × 103,663.08
  4. Step 4: Simplify right side
    188,547.84x = 26,972,358,016.16
  5. Step 5: Solve for x
    x = 26,972,358,016.16/188,547.84
  6. Step 6: Final answer
    x = 143,053.13

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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.