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Finding the Fourth Proportional to 259,756.49, 358,460.44 and 145,036.91

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Solution

The fourth proportional to 259,756.49, 358,460.44 and 145,036.91 is: 200,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,756.49 : 358,460.44 = 145,036.91 : x
  2. Step 2: Convert to fraction form
    259,756.49/358,460.44 = 145,036.91/x
  3. Step 3: Cross multiply
    259,756.49x = 358,460.44 × 145,036.91
  4. Step 4: Simplify right side
    259,756.49x = 51,989,994,574.84
  5. Step 5: Solve for x
    x = 51,989,994,574.84/259,756.49
  6. Step 6: Final answer
    x = 200,148.97

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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.