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Finding the Fourth Proportional to 111,282.51, 153,623.08 and 63,526.63

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Solution

The fourth proportional to 111,282.51, 153,623.08 and 63,526.63 is: 87,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,282.51 : 153,623.08 = 63,526.63 : x
  2. Step 2: Convert to fraction form
    111,282.51/153,623.08 = 63,526.63/x
  3. Step 3: Cross multiply
    111,282.51x = 153,623.08 × 63,526.63
  4. Step 4: Simplify right side
    111,282.51x = 9,759,156,546.01
  5. Step 5: Solve for x
    x = 9,759,156,546.01/111,282.51
  6. Step 6: Final answer
    x = 87,697.13

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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.