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Finding the Fourth Proportional to 187,547, 281,320.56 and 56,219

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Solution

The fourth proportional to 187,547, 281,320.56 and 56,219 is: 84,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,547 : 281,320.56 = 56,219 : x
  2. Step 2: Convert to fraction form
    187,547/281,320.56 = 56,219/x
  3. Step 3: Cross multiply
    187,547x = 281,320.56 × 56,219
  4. Step 4: Simplify right side
    187,547x = 15,815,560,562.64
  5. Step 5: Solve for x
    x = 15,815,560,562.64/187,547
  6. Step 6: Final answer
    x = 84,328.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.