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Finding the Fourth Proportional to 191,503.72, 264,315.20 and 115,026.16

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Solution

The fourth proportional to 191,503.72, 264,315.20 and 115,026.16 is: 158,760.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,503.72 : 264,315.20 = 115,026.16 : x
  2. Step 2: Convert to fraction form
    191,503.72/264,315.20 = 115,026.16/x
  3. Step 3: Cross multiply
    191,503.72x = 264,315.20 × 115,026.16
  4. Step 4: Simplify right side
    191,503.72x = 30,403,162,485.63
  5. Step 5: Solve for x
    x = 30,403,162,485.63/191,503.72
  6. Step 6: Final answer
    x = 158,760.17

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1.5x scale

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.