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Finding the Fourth Proportional to 175,722.80, 242,492.28 and 99,245.03

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Solution

The fourth proportional to 175,722.80, 242,492.28 and 99,245.03 is: 136,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,722.80 : 242,492.28 = 99,245.03 : x
  2. Step 2: Convert to fraction form
    175,722.80/242,492.28 = 99,245.03/x
  3. Step 3: Cross multiply
    175,722.80x = 242,492.28 × 99,245.03
  4. Step 4: Simplify right side
    175,722.80x = 24,066,153,603.37
  5. Step 5: Solve for x
    x = 24,066,153,603.37/175,722.80
  6. Step 6: Final answer
    x = 136,955.21

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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.