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Finding the Fourth Proportional to 104,205.54, 143,803.67 and 56,458.89

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Solution

The fourth proportional to 104,205.54, 143,803.67 and 56,458.89 is: 77,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,205.54 : 143,803.67 = 56,458.89 : x
  2. Step 2: Convert to fraction form
    104,205.54/143,803.67 = 56,458.89/x
  3. Step 3: Cross multiply
    104,205.54x = 143,803.67 × 56,458.89
  4. Step 4: Simplify right side
    104,205.54x = 8,118,995,303.83
  5. Step 5: Solve for x
    x = 8,118,995,303.83/104,205.54
  6. Step 6: Final answer
    x = 77,913.28

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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.