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Finding the Fourth Proportional to 111,336.95, 153,628.29 and 63,580.16

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Solution

The fourth proportional to 111,336.95, 153,628.29 and 63,580.16 is: 87,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,336.95 : 153,628.29 = 63,580.16 : x
  2. Step 2: Convert to fraction form
    111,336.95/153,628.29 = 63,580.16/x
  3. Step 3: Cross multiply
    111,336.95x = 153,628.29 × 63,580.16
  4. Step 4: Simplify right side
    111,336.95x = 9,767,710,490.58
  5. Step 5: Solve for x
    x = 9,767,710,490.58/111,336.95
  6. Step 6: Final answer
    x = 87,731.08

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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.