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Finding the Fourth Proportional to 314,965.40, 472,448.10 and 157,501.40

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Solution

The fourth proportional to 314,965.40, 472,448.10 and 157,501.40 is: 236,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,965.40 : 472,448.10 = 157,501.40 : x
  2. Step 2: Convert to fraction form
    314,965.40/472,448.10 = 157,501.40/x
  3. Step 3: Cross multiply
    314,965.40x = 472,448.10 × 157,501.40
  4. Step 4: Simplify right side
    314,965.40x = 74,411,237,177.34
  5. Step 5: Solve for x
    x = 74,411,237,177.34/314,965.40
  6. Step 6: Final answer
    x = 236,252.10

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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.