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Finding the Fourth Proportional to 84,816.80, 118,588 and 84,816.80

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Solution

The fourth proportional to 84,816.80, 118,588 and 84,816.80 is: 118,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,816.80 : 118,588 = 84,816.80 : x
  2. Step 2: Convert to fraction form
    84,816.80/118,588 = 84,816.80/x
  3. Step 3: Cross multiply
    84,816.80x = 118,588 × 84,816.80
  4. Step 4: Simplify right side
    84,816.80x = 10,058,254,678.40
  5. Step 5: Solve for x
    x = 10,058,254,678.40/84,816.80
  6. Step 6: Final answer
    x = 118,588.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.