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Finding the Fourth Proportional to 306,643.61, 460,059.64 and 156,988.96

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Solution

The fourth proportional to 306,643.61, 460,059.64 and 156,988.96 is: 235,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,643.61 : 460,059.64 = 156,988.96 : x
  2. Step 2: Convert to fraction form
    306,643.61/460,059.64 = 156,988.96/x
  3. Step 3: Cross multiply
    306,643.61x = 460,059.64 × 156,988.96
  4. Step 4: Simplify right side
    306,643.61x = 72,224,282,878.95
  5. Step 5: Solve for x
    x = 72,224,282,878.95/306,643.61
  6. Step 6: Final answer
    x = 235,531.67

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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.