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Finding the Fourth Proportional to 303,437.80, 455,156.70 and 93,048.40

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Solution

The fourth proportional to 303,437.80, 455,156.70 and 93,048.40 is: 139,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,437.80 : 455,156.70 = 93,048.40 : x
  2. Step 2: Convert to fraction form
    303,437.80/455,156.70 = 93,048.40/x
  3. Step 3: Cross multiply
    303,437.80x = 455,156.70 × 93,048.40
  4. Step 4: Simplify right side
    303,437.80x = 42,351,602,684.28
  5. Step 5: Solve for x
    x = 42,351,602,684.28/303,437.80
  6. Step 6: Final answer
    x = 139,572.60

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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.