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Finding the Fourth Proportional to 111,347.84, 153,653.50 and 66,030.18

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Solution

The fourth proportional to 111,347.84, 153,653.50 and 66,030.18 is: 91,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,347.84 : 153,653.50 = 66,030.18 : x
  2. Step 2: Convert to fraction form
    111,347.84/153,653.50 = 66,030.18/x
  3. Step 3: Cross multiply
    111,347.84x = 153,653.50 × 66,030.18
  4. Step 4: Simplify right side
    111,347.84x = 10,145,768,262.63
  5. Step 5: Solve for x
    x = 10,145,768,262.63/111,347.84
  6. Step 6: Final answer
    x = 91,117.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.