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Finding the Fourth Proportional to 316,430.80, 474,492.60 and 176,040.40

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Solution

The fourth proportional to 316,430.80, 474,492.60 and 176,040.40 is: 263,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,430.80 : 474,492.60 = 176,040.40 : x
  2. Step 2: Convert to fraction form
    316,430.80/474,492.60 = 176,040.40/x
  3. Step 3: Cross multiply
    316,430.80x = 474,492.60 × 176,040.40
  4. Step 4: Simplify right side
    316,430.80x = 83,529,867,101.04
  5. Step 5: Solve for x
    x = 83,529,867,101.04/316,430.80
  6. Step 6: Final answer
    x = 263,975.15

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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.