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Finding the Fourth Proportional to 76,674.51, 114,428.75 and 71,598.51

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Solution

The fourth proportional to 76,674.51, 114,428.75 and 71,598.51 is: 106,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,674.51 : 114,428.75 = 71,598.51 : x
  2. Step 2: Convert to fraction form
    76,674.51/114,428.75 = 71,598.51/x
  3. Step 3: Cross multiply
    76,674.51x = 114,428.75 × 71,598.51
  4. Step 4: Simplify right side
    76,674.51x = 8,192,927,643.17
  5. Step 5: Solve for x
    x = 8,192,927,643.17/76,674.51
  6. Step 6: Final answer
    x = 106,853.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.