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Finding the Fourth Proportional to 303,953.10, 455,886.45 and 93,612.30

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Solution

The fourth proportional to 303,953.10, 455,886.45 and 93,612.30 is: 140,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,953.10 : 455,886.45 = 93,612.30 : x
  2. Step 2: Convert to fraction form
    303,953.10/455,886.45 = 93,612.30/x
  3. Step 3: Cross multiply
    303,953.10x = 455,886.45 × 93,612.30
  4. Step 4: Simplify right side
    303,953.10x = 42,676,579,123.34
  5. Step 5: Solve for x
    x = 42,676,579,123.34/303,953.10
  6. Step 6: Final answer
    x = 140,405.15

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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.