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Finding the Fourth Proportional to 314,946.40, 472,484.40 and 104,735.20

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Solution

The fourth proportional to 314,946.40, 472,484.40 and 104,735.20 is: 157,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,946.40 : 472,484.40 = 104,735.20 : x
  2. Step 2: Convert to fraction form
    314,946.40/472,484.40 = 104,735.20/x
  3. Step 3: Cross multiply
    314,946.40x = 472,484.40 × 104,735.20
  4. Step 4: Simplify right side
    314,946.40x = 49,485,748,130.88
  5. Step 5: Solve for x
    x = 49,485,748,130.88/314,946.40
  6. Step 6: Final answer
    x = 157,124.35

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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.