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Finding the Fourth Proportional to 452,600.64, 678,988.53 and 153,130.05

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Solution

The fourth proportional to 452,600.64, 678,988.53 and 153,130.05 is: 229,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,600.64 : 678,988.53 = 153,130.05 : x
  2. Step 2: Convert to fraction form
    452,600.64/678,988.53 = 153,130.05/x
  3. Step 3: Cross multiply
    452,600.64x = 678,988.53 × 153,130.05
  4. Step 4: Simplify right side
    452,600.64x = 103,973,547,548.33
  5. Step 5: Solve for x
    x = 103,973,547,548.33/452,600.64
  6. Step 6: Final answer
    x = 229,724.70

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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.