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Finding the Fourth Proportional to 157,887.60, 236,831.40 and 144,985.20

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Solution

The fourth proportional to 157,887.60, 236,831.40 and 144,985.20 is: 217,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,887.60 : 236,831.40 = 144,985.20 : x
  2. Step 2: Convert to fraction form
    157,887.60/236,831.40 = 144,985.20/x
  3. Step 3: Cross multiply
    157,887.60x = 236,831.40 × 144,985.20
  4. Step 4: Simplify right side
    157,887.60x = 34,337,047,895.28
  5. Step 5: Solve for x
    x = 34,337,047,895.28/157,887.60
  6. Step 6: Final answer
    x = 217,477.80

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1.5x scale

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.