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Finding the Fourth Proportional to 477,016.95, 715,521.77 and 122,030.40

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Solution

The fourth proportional to 477,016.95, 715,521.77 and 122,030.40 is: 183,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,016.95 : 715,521.77 = 122,030.40 : x
  2. Step 2: Convert to fraction form
    477,016.95/715,521.77 = 122,030.40/x
  3. Step 3: Cross multiply
    477,016.95x = 715,521.77 × 122,030.40
  4. Step 4: Simplify right side
    477,016.95x = 87,315,407,801.81
  5. Step 5: Solve for x
    x = 87,315,407,801.81/477,016.95
  6. Step 6: Final answer
    x = 183,044.66

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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.