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Finding the Fourth Proportional to 111,559, 153,952.50 and 61,259.08

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Solution

The fourth proportional to 111,559, 153,952.50 and 61,259.08 is: 84,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,559 : 153,952.50 = 61,259.08 : x
  2. Step 2: Convert to fraction form
    111,559/153,952.50 = 61,259.08/x
  3. Step 3: Cross multiply
    111,559x = 153,952.50 × 61,259.08
  4. Step 4: Simplify right side
    111,559x = 9,430,988,513.70
  5. Step 5: Solve for x
    x = 9,430,988,513.70/111,559
  6. Step 6: Final answer
    x = 84,538.12

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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.