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Finding the Fourth Proportional to 118,730,615.40, 178,095,923.10 and 118,730,615.40

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Solution

The fourth proportional to 118,730,615.40, 178,095,923.10 and 118,730,615.40 is: 178,095,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,730,615.40 : 178,095,923.10 = 118,730,615.40 : x
  2. Step 2: Convert to fraction form
    118,730,615.40/178,095,923.10 = 118,730,615.40/x
  3. Step 3: Cross multiply
    118,730,615.40x = 178,095,923.10 × 118,730,615.40
  4. Step 4: Simplify right side
    118,730,615.40x = 21,145,438,549,894,076
  5. Step 5: Solve for x
    x = 21,145,438,549,894,076/118,730,615.40
  6. Step 6: Final answer
    x = 178,095,923.10

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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.