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Finding the Fourth Proportional to 72,457.40, 97,506.45 and 72,457.40

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Solution

The fourth proportional to 72,457.40, 97,506.45 and 72,457.40 is: 97,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,457.40 : 97,506.45 = 72,457.40 : x
  2. Step 2: Convert to fraction form
    72,457.40/97,506.45 = 72,457.40/x
  3. Step 3: Cross multiply
    72,457.40x = 97,506.45 × 72,457.40
  4. Step 4: Simplify right side
    72,457.40x = 7,065,063,850.23
  5. Step 5: Solve for x
    x = 7,065,063,850.23/72,457.40
  6. Step 6: Final answer
    x = 97,506.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.