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Finding the Fourth Proportional to 111,491.06, 153,858.05 and 60,503.76

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Solution

The fourth proportional to 111,491.06, 153,858.05 and 60,503.76 is: 83,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,491.06 : 153,858.05 = 60,503.76 : x
  2. Step 2: Convert to fraction form
    111,491.06/153,858.05 = 60,503.76/x
  3. Step 3: Cross multiply
    111,491.06x = 153,858.05 × 60,503.76
  4. Step 4: Simplify right side
    111,491.06x = 9,308,990,228.75
  5. Step 5: Solve for x
    x = 9,308,990,228.75/111,491.06
  6. Step 6: Final answer
    x = 83,495.40

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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.