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Finding the Fourth Proportional to 434,554.40, 651,831.60 and 135,032.60

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Solution

The fourth proportional to 434,554.40, 651,831.60 and 135,032.60 is: 202,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,554.40 : 651,831.60 = 135,032.60 : x
  2. Step 2: Convert to fraction form
    434,554.40/651,831.60 = 135,032.60/x
  3. Step 3: Cross multiply
    434,554.40x = 651,831.60 × 135,032.60
  4. Step 4: Simplify right side
    434,554.40x = 88,018,515,710.16
  5. Step 5: Solve for x
    x = 88,018,515,710.16/434,554.40
  6. Step 6: Final answer
    x = 202,548.90

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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.