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Finding the Fourth Proportional to 74,894.58, 103,307.06 and 56,950.25

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Solution

The fourth proportional to 74,894.58, 103,307.06 and 56,950.25 is: 78,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,894.58 : 103,307.06 = 56,950.25 : x
  2. Step 2: Convert to fraction form
    74,894.58/103,307.06 = 56,950.25/x
  3. Step 3: Cross multiply
    74,894.58x = 103,307.06 × 56,950.25
  4. Step 4: Simplify right side
    74,894.58x = 5,883,362,519.61
  5. Step 5: Solve for x
    x = 5,883,362,519.61/74,894.58
  6. Step 6: Final answer
    x = 78,555.25

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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.