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Finding the Fourth Proportional to 342,768.23, 473,014.35 and 189,803.15

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Solution

The fourth proportional to 342,768.23, 473,014.35 and 189,803.15 is: 261,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,768.23 : 473,014.35 = 189,803.15 : x
  2. Step 2: Convert to fraction form
    342,768.23/473,014.35 = 189,803.15/x
  3. Step 3: Cross multiply
    342,768.23x = 473,014.35 × 189,803.15
  4. Step 4: Simplify right side
    342,768.23x = 89,779,614,807.74
  5. Step 5: Solve for x
    x = 89,779,614,807.74/342,768.23
  6. Step 6: Final answer
    x = 261,925.13

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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.