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Finding the Fourth Proportional to 128,064.17, 192,074.58 and 46,994.51

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Solution

The fourth proportional to 128,064.17, 192,074.58 and 46,994.51 is: 70,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,064.17 : 192,074.58 = 46,994.51 : x
  2. Step 2: Convert to fraction form
    128,064.17/192,074.58 = 46,994.51/x
  3. Step 3: Cross multiply
    128,064.17x = 192,074.58 × 46,994.51
  4. Step 4: Simplify right side
    128,064.17x = 9,026,449,810.18
  5. Step 5: Solve for x
    x = 9,026,449,810.18/128,064.17
  6. Step 6: Final answer
    x = 70,483.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.