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Finding the Fourth Proportional to 104,055.75, 143,595.86 and 56,308.01

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Solution

The fourth proportional to 104,055.75, 143,595.86 and 56,308.01 is: 77,704.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,055.75 : 143,595.86 = 56,308.01 : x
  2. Step 2: Convert to fraction form
    104,055.75/143,595.86 = 56,308.01/x
  3. Step 3: Cross multiply
    104,055.75x = 143,595.86 × 56,308.01
  4. Step 4: Simplify right side
    104,055.75x = 8,085,596,121.32
  5. Step 5: Solve for x
    x = 8,085,596,121.32/104,055.75
  6. Step 6: Final answer
    x = 77,704.46

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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.