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Finding the Fourth Proportional to 306,573.90, 459,706.28 and 93,300.90

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Solution

The fourth proportional to 306,573.90, 459,706.28 and 93,300.90 is: 139,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,573.90 : 459,706.28 = 93,300.90 : x
  2. Step 2: Convert to fraction form
    306,573.90/459,706.28 = 93,300.90/x
  3. Step 3: Cross multiply
    306,573.90x = 459,706.28 × 93,300.90
  4. Step 4: Simplify right side
    306,573.90x = 42,891,009,659.65
  5. Step 5: Solve for x
    x = 42,891,009,659.65/306,573.90
  6. Step 6: Final answer
    x = 139,904.31

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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.