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Finding the Fourth Proportional to 288,703.60, 433,055.40 and 182,415.40

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Solution

The fourth proportional to 288,703.60, 433,055.40 and 182,415.40 is: 273,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,703.60 : 433,055.40 = 182,415.40 : x
  2. Step 2: Convert to fraction form
    288,703.60/433,055.40 = 182,415.40/x
  3. Step 3: Cross multiply
    288,703.60x = 433,055.40 × 182,415.40
  4. Step 4: Simplify right side
    288,703.60x = 78,995,974,013.16
  5. Step 5: Solve for x
    x = 78,995,974,013.16/288,703.60
  6. Step 6: Final answer
    x = 273,623.10

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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.