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Finding the Fourth Proportional to 315,649.23, 473,574.69 and 113,108.58

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Solution

The fourth proportional to 315,649.23, 473,574.69 and 113,108.58 is: 169,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,649.23 : 473,574.69 = 113,108.58 : x
  2. Step 2: Convert to fraction form
    315,649.23/473,574.69 = 113,108.58/x
  3. Step 3: Cross multiply
    315,649.23x = 473,574.69 × 113,108.58
  4. Step 4: Simplify right side
    315,649.23x = 53,565,360,709.84
  5. Step 5: Solve for x
    x = 53,565,360,709.84/315,649.23
  6. Step 6: Final answer
    x = 169,699.01

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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.