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Finding the Fourth Proportional to 242,478.04, 334,630.04 and 135,048.08

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Solution

The fourth proportional to 242,478.04, 334,630.04 and 135,048.08 is: 186,372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,478.04 : 334,630.04 = 135,048.08 : x
  2. Step 2: Convert to fraction form
    242,478.04/334,630.04 = 135,048.08/x
  3. Step 3: Cross multiply
    242,478.04x = 334,630.04 × 135,048.08
  4. Step 4: Simplify right side
    242,478.04x = 45,191,144,412.32
  5. Step 5: Solve for x
    x = 45,191,144,412.32/242,478.04
  6. Step 6: Final answer
    x = 186,372.11

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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.