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Finding the Fourth Proportional to 85,323.81, 127,886.07 and 64,195.98

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Solution

The fourth proportional to 85,323.81, 127,886.07 and 64,195.98 is: 96,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,323.81 : 127,886.07 = 64,195.98 : x
  2. Step 2: Convert to fraction form
    85,323.81/127,886.07 = 64,195.98/x
  3. Step 3: Cross multiply
    85,323.81x = 127,886.07 × 64,195.98
  4. Step 4: Simplify right side
    85,323.81x = 8,209,771,592.00
  5. Step 5: Solve for x
    x = 8,209,771,592.00/85,323.81
  6. Step 6: Final answer
    x = 96,219.00

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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.