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Finding the Fourth Proportional to 124,483.84, 171,803.13 and 76,075.81

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Solution

The fourth proportional to 124,483.84, 171,803.13 and 76,075.81 is: 104,994.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,483.84 : 171,803.13 = 76,075.81 : x
  2. Step 2: Convert to fraction form
    124,483.84/171,803.13 = 76,075.81/x
  3. Step 3: Cross multiply
    124,483.84x = 171,803.13 × 76,075.81
  4. Step 4: Simplify right side
    124,483.84x = 13,070,061,560.49
  5. Step 5: Solve for x
    x = 13,070,061,560.49/124,483.84
  6. Step 6: Final answer
    x = 104,994.04

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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.