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Finding the Fourth Proportional to 104,533.98, 144,258.12 and 56,788.08

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Solution

The fourth proportional to 104,533.98, 144,258.12 and 56,788.08 is: 78,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,533.98 : 144,258.12 = 56,788.08 : x
  2. Step 2: Convert to fraction form
    104,533.98/144,258.12 = 56,788.08/x
  3. Step 3: Cross multiply
    104,533.98x = 144,258.12 × 56,788.08
  4. Step 4: Simplify right side
    104,533.98x = 8,192,141,659.21
  5. Step 5: Solve for x
    x = 8,192,141,659.21/104,533.98
  6. Step 6: Final answer
    x = 78,368.22

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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.