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Finding the Fourth Proportional to 104,833.80, 144,507.29 and 87,808.01

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Solution

The fourth proportional to 104,833.80, 144,507.29 and 87,808.01 is: 121,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,833.80 : 144,507.29 = 87,808.01 : x
  2. Step 2: Convert to fraction form
    104,833.80/144,507.29 = 87,808.01/x
  3. Step 3: Cross multiply
    104,833.80x = 144,507.29 × 87,808.01
  4. Step 4: Simplify right side
    104,833.80x = 12,688,896,403.82
  5. Step 5: Solve for x
    x = 12,688,896,403.82/104,833.80
  6. Step 6: Final answer
    x = 121,038.22

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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.