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Finding the Fourth Proportional to 477,730.89, 716,707.05 and 162,187.80

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Solution

The fourth proportional to 477,730.89, 716,707.05 and 162,187.80 is: 243,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,730.89 : 716,707.05 = 162,187.80 : x
  2. Step 2: Convert to fraction form
    477,730.89/716,707.05 = 162,187.80/x
  3. Step 3: Cross multiply
    477,730.89x = 716,707.05 × 162,187.80
  4. Step 4: Simplify right side
    477,730.89x = 116,241,139,683.99
  5. Step 5: Solve for x
    x = 116,241,139,683.99/477,730.89
  6. Step 6: Final answer
    x = 243,319.29

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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.