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Finding the Fourth Proportional to 242,528.63, 363,776.01 and 90,696.81

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Solution

The fourth proportional to 242,528.63, 363,776.01 and 90,696.81 is: 136,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,528.63 : 363,776.01 = 90,696.81 : x
  2. Step 2: Convert to fraction form
    242,528.63/363,776.01 = 90,696.81/x
  3. Step 3: Cross multiply
    242,528.63x = 363,776.01 × 90,696.81
  4. Step 4: Simplify right side
    242,528.63x = 32,993,325,195.74
  5. Step 5: Solve for x
    x = 32,993,325,195.74/242,528.63
  6. Step 6: Final answer
    x = 136,038.89

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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.