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Finding the Fourth Proportional to 501,552, 752,371.74 and 127,575

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Solution

The fourth proportional to 501,552, 752,371.74 and 127,575 is: 191,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,552 : 752,371.74 = 127,575 : x
  2. Step 2: Convert to fraction form
    501,552/752,371.74 = 127,575/x
  3. Step 3: Cross multiply
    501,552x = 752,371.74 × 127,575
  4. Step 4: Simplify right side
    501,552x = 95,983,824,730.50
  5. Step 5: Solve for x
    x = 95,983,824,730.50/501,552
  6. Step 6: Final answer
    x = 191,373.63

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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.