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Finding the Fourth Proportional to 97,205.40, 145,865.70 and 64,020.60

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Solution

The fourth proportional to 97,205.40, 145,865.70 and 64,020.60 is: 96,068.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,205.40 : 145,865.70 = 64,020.60 : x
  2. Step 2: Convert to fraction form
    97,205.40/145,865.70 = 64,020.60/x
  3. Step 3: Cross multiply
    97,205.40x = 145,865.70 × 64,020.60
  4. Step 4: Simplify right side
    97,205.40x = 9,338,409,633.42
  5. Step 5: Solve for x
    x = 9,338,409,633.42/97,205.40
  6. Step 6: Final answer
    x = 96,068.84

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1.5x scale

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.