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Finding the Fourth Proportional to 310,746.76, 465,372.45 and 210,603.11

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Solution

The fourth proportional to 310,746.76, 465,372.45 and 210,603.11 is: 315,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,746.76 : 465,372.45 = 210,603.11 : x
  2. Step 2: Convert to fraction form
    310,746.76/465,372.45 = 210,603.11/x
  3. Step 3: Cross multiply
    310,746.76x = 465,372.45 × 210,603.11
  4. Step 4: Simplify right side
    310,746.76x = 98,008,886,441.75
  5. Step 5: Solve for x
    x = 98,008,886,441.75/310,746.76
  6. Step 6: Final answer
    x = 315,397.94

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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.