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Finding the Fourth Proportional to 93,312,101.60, 139,968,152.40 and 28,615,392.80

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Solution

The fourth proportional to 93,312,101.60, 139,968,152.40 and 28,615,392.80 is: 42,923,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,101.60 : 139,968,152.40 = 28,615,392.80 : x
  2. Step 2: Convert to fraction form
    93,312,101.60/139,968,152.40 = 28,615,392.80/x
  3. Step 3: Cross multiply
    93,312,101.60x = 139,968,152.40 × 28,615,392.80
  4. Step 4: Simplify right side
    93,312,101.60x = 4,005,243,660,416,263
  5. Step 5: Solve for x
    x = 4,005,243,660,416,263/93,312,101.60
  6. Step 6: Final answer
    x = 42,923,089.20

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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.