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Finding the Fourth Proportional to 348,444.51, 522,666.69 and 99,126.51

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Solution

The fourth proportional to 348,444.51, 522,666.69 and 99,126.51 is: 148,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,444.51 : 522,666.69 = 99,126.51 : x
  2. Step 2: Convert to fraction form
    348,444.51/522,666.69 = 99,126.51/x
  3. Step 3: Cross multiply
    348,444.51x = 522,666.69 × 99,126.51
  4. Step 4: Simplify right side
    348,444.51x = 51,810,124,872.95
  5. Step 5: Solve for x
    x = 51,810,124,872.95/348,444.51
  6. Step 6: Final answer
    x = 148,689.74

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Double scale
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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.