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Finding the Fourth Proportional to 104,430.56, 144,114.28 and 56,683.88

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Solution

The fourth proportional to 104,430.56, 144,114.28 and 56,683.88 is: 78,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,430.56 : 144,114.28 = 56,683.88 : x
  2. Step 2: Convert to fraction form
    104,430.56/144,114.28 = 56,683.88/x
  3. Step 3: Cross multiply
    104,430.56x = 144,114.28 × 56,683.88
  4. Step 4: Simplify right side
    104,430.56x = 8,168,956,553.81
  5. Step 5: Solve for x
    x = 8,168,956,553.81/104,430.56
  6. Step 6: Final answer
    x = 78,223.81

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1.5x scale

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.