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Finding the Fourth Proportional to 127,636.61, 176,155.05 and 73,210.01

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Solution

The fourth proportional to 127,636.61, 176,155.05 and 73,210.01 is: 101,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,636.61 : 176,155.05 = 73,210.01 : x
  2. Step 2: Convert to fraction form
    127,636.61/176,155.05 = 73,210.01/x
  3. Step 3: Cross multiply
    127,636.61x = 176,155.05 × 73,210.01
  4. Step 4: Simplify right side
    127,636.61x = 12,896,312,972.05
  5. Step 5: Solve for x
    x = 12,896,312,972.05/127,636.61
  6. Step 6: Final answer
    x = 101,039.29

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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.