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Finding the Fourth Proportional to 70,445.62, 97,139.01 and 53,480.98

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Solution

The fourth proportional to 70,445.62, 97,139.01 and 53,480.98 is: 73,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,445.62 : 97,139.01 = 53,480.98 : x
  2. Step 2: Convert to fraction form
    70,445.62/97,139.01 = 53,480.98/x
  3. Step 3: Cross multiply
    70,445.62x = 97,139.01 × 53,480.98
  4. Step 4: Simplify right side
    70,445.62x = 5,195,089,451.03
  5. Step 5: Solve for x
    x = 5,195,089,451.03/70,445.62
  6. Step 6: Final answer
    x = 73,746.10

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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.